Use it while you can, as a hotfix is sure to be inc.
And no, I did not find this, just bringing it to the attention of the community.
World of Warcraft - English (NA) Forums -> Hand of Reckoning on Taunt Immune Bosses
Basically, macro HoR to a judgement and use that on taunt immune bosses to add an additional 500 or so DPS.
Again, I'm not the one who discovered this.